This study investigated the effects of soy oligosaccharide consumption on feces bifidobacteria proliferation and feces lipid profiles in Korean young women. Eight healthy young women (25 - 34 years) were fed 15 g/day of soyoligosaccharide solution, containing 3 g of oligosaccharide as form of raffinose and starchyose, for 15 days with their habitual meals. Soyoligosaccharde intake increased the numbers of fecal total bacteria significantly until 10 days (p < 0.05) and the numbers of fecal bifidobactreia were significantly increased until 15 days (p < 0.05) . The fecal pH was significantly decreased (p < 0.05) by soyligosaccharide intake. Fecal lipid concentration showed the trend to increse, especially fecal triglyceride level was significantly increased by soy oligosaccharide intake (p < 0.05). The water contents of feces, the amount of feces, evacuation frequency and taking time to evacuation were not affected by soyoligosaccharide intake. The color of feces changed to yellow-brown, and hardness of stool and effort to evacuation were reduced by soyoligosaccharide intake. These results suggest that soyoligosaccharide intake (3 g/day) in young women improved the gut microflora and fecal lipid profile. Therefore, soy oligosaccharide has a potential to be used as one of the promising prebiotics, and controlled trials with larger sample sizes and longer duration are need to be studied further.
Comparative effects of oyster mushrooms on plasma and fecal lipid profiles and on liver and kidney function were evaluated in hyper and normocholesterolemic rats. Feeding of hypercholesterolemic rats a 5% powder of oyster mushrooms (Pleurotus ostreatus, P. sajor-caju and P. florida) reduced the plasma total cholesterol level by 37%, 21% and 16%, respectively and reduced the triglyceride level by 45%, 24% and 14%, respectively. LDL/HDL ratio decreased by 64%, 45% and 41% for P. sajor-caju, P. ostreatus and P. florida fed rats, respectively. Mushroom feeding also reduced body weight in hypercholesterolemic rats. However, it had no adverse effect on plasma bilirubin, creatinin and urea nitrogen level. Mushroom feeding also increased the total lipid and cholesterol excretion in the feces. The present study reveals that feeding of 5% oyster mushroom powder does not have detrimental effects on the liver and kidneys rather may provide health benefits for the cardiovascular-related complication by decreasing the atherogenic lipid profiles.
Kim, Mi-Hyun;Kim, Seol-Hee;Park, Hyun-Woo;Kim, Wan-Gi;Lee, Yeon-Sook
Journal of Nutrition and Health
/
v.39
no.8
/
pp.733-741
/
2006
The study was conducted to investigate the effects of dietary calcium and soy isoflavone on body fat and lipid metabolism in high fat-induced obesity. Four week old female C57/BL6J mice, known as a good model of diet-induced obesity, were fed low Ca and high fat diet for 6 weeks. After induced obesity, mice were divided into six groups according to diets varying calcium contents (0.1 or 1.5%) and genistein contents (0 or 500 or 1,000 ppm). Body weight, fat pad (perirenal fat and parameterial fat), adipocyte size, serum total lipid and total cholesterol were significantly decreased by both high Ca intake and genistein supplementation. However, the effect of genistein supplementation showed in low Ca-fed groups. Serum LDL-cholesterol and TG were significantly decreased by high Ca intake and genistein supplementation, respectively. In liver, lipogenic enzymes (fatty acid synthase and malic enzyme) activity and TG were significantly decreased by both high Ca intake and genistein supplementation. This inhibitory effect of genistein on lipogenic enzymes showed in low Ca-fed groups. But liver total cholesterol and total lipid were significantly decreased by high Ca intake and genistein supplementation, respectively. Fecal excretion of total lipid, total cholesterol and TG were significantly increased by high Ca intake, not by genistein supplementation. In conclusion, high calcium intake and genistein supplement may be beneficial for suppression of obesity through direct anti-adipogenesis by decreasing fat weight and size and indirect anti-lipo-genesis by inhibiting lipogenic enzymes activity and improving lipid profile.
Although beneficial effects of dietary plant proteins on lipid metabolism are well documented, not much information exists on the influence of different seafood proteins on the lipid metabolism. The present study evaluated the effect of 2 marine proteins (tuna protein and scallop ovary proteins) in comparison to casein and soy protein in male Wistar rats. The concentration of total lipids in the plasma of rats fed experimental diets was significantly lower from that of control (278.2 mg/dL) group (p<0.05); and, the liver lipid content was not significantly different (p>0.05). Fecal excretion of cholesterol and bile acids was significantly higher in marine proteins and soy protein fed groups compared to casein only fed control (6.1 and 6.4 mg/day, respectively) group (p<0.05). No significant differences were observed in the mRNA concentrations of different transcriptional factors (p>0.05).
Kim Young-Hee;Chon Jeong-Woo;Song You-Jin;Han Jone-Hyun;Park Sung-Hye
Journal of Physiology & Pathology in Korean Medicine
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v.19
no.5
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pp.1272-1280
/
2005
The study was performed by examining the effects of fermented liquid of Crataegi Fructus on the lipid profile improvement in rats fed high fat diets. Sprague-Dawley rats of weighting $180.0{\pm}30g$ were randomly divided into five groups : basal diet (Normal control group, NCG), only high fat diet (High fat control group, HFC), high fat diet and supplemented with 1.69 mg/100 g body weight, 3.38 mg/100 g body weight, 6.76 mg/100 g body weight by fermented liquid of Crataegi Fructus - HFL, HFM, HFH group). These experimental diets were fed for 6 weeks. The fermented liquid of Crataegi Fructus fed groups had more significantly decreased in the levels of serum total cholesterol, triglyceride, LDL-cholesterol and atherogenic index than the high fat control group, while the HDL-cholesterol was higher when compared to the normal control group. Total lipid, total cholesterol, triglyceride, LDL-cholesterol contents in liver were decreased in high fat experimental groups. But the degree of increment was reduced by administration of fermented liquid of Crataegi Fructus. while the fermented liquid of Crataegi Fructus fed group had ore significantly increased in the level of HDL-cholesterol than the high fat control group. The singularity of the unsaturated fatty acid contents attracted our attention. Especially, the polyunsaturated fatty acid compositions were 36.36%, 34.70%, 20.31%in serum, liver and fecal of fermented liquid of Crataegi Fructus fed groups, respectively. These results imply that the fermented liquid of Crataegi Fructus can be used as possible food resources and medicinal food materials.
Recently, Korean people are consuming seaweeds almost 3.5 times more now than three decades ago. It is well known that seaweeds contain lots of soluble dietary fiber in addition to micronutrients such as ${\beta}$-carotene, iodine and some bioactive components. Seaweeds are considered to be effective for preventing chronic diseases including obesity, diabetes mellitus, atherosclerosis, cancer or constipation. This study was conducted to investigate the effect of seamustard intake on body weight gain, blood glucose level and lipid profiles in rats fed diets with different energy nutrient composition. Male Sprague-Dawley rats (average initial weight 103.7g) were divided into groups for two experiments as follows; Control, M2.5 & M5 groups (Exp. I) and M5, M10, HCM5, HCM10, HFM5 & HFM10 groups (Exp. II). The rats were fed diet and water ad libitum for 4 weeks. In general, there was no significant difference in blood glucose and triglyceride concentration among groups. In Exp. I, serum LDL-cholesterol level of rats fed diet with 5% seamustard powder (M5) was significantly lower than that of control group, while HDL-cholesterol level, TC/LDL ratio and weight of adrenal gland were higher. In Exp. II, food intake, body weight gain and EER of high fat diet with 10% seamustard group (HFM10) were the lowest among groups. Except gastrocnemius muscle, all organ weights of HFM10 group were the lowest. Fecal cholesterol excretion and serum LDL-cholesterol concentration of HFM10 group were the highest, while serum HDL-cholesterol level was the lowest among groups. Interestingly, HDL-cholesterol concentration was the highest in HCM5 group among groups. From these results, it was suggested that seamustard intake might be more effective for body weight control, but not for improving blood lipid profiles in high fat diet than in high carbohydrate diet.
This study was conducted to evaluate the effect of whole egg supplementation on the blood lipid profiles and cholesterol levels of C57BL/6 mice. Sixty-six mice were divided into two groups: normal-diet supplemented and high-cholesterol diet supplemented. Lyophilized whole egg powder was mixed with the two diets at 2 and 10%: normal diet only, normal diet with 2 and 10% whole egg powder, high cholesterol diet only, high cholesterol diet with 2 and 10% whole egg powder. The mixed diets were fed for 5 wk and feeding condition (body weight change, feed intake, and feed efficiency ratio (FER)), blood lipid profiles (total cholesterol (TC), triglyceride (TG), high density lipoprotein-cholesterol (HDL-C), low density lipoprotein cholesterol, hepatic and fecal lipids (TG, TC)), and fecal bile acids were determined. No significant differences were found in body weight gain or FER after whole egg supplementation in both the normal and high-cholesterol diet fed groups. In the normal-diet fed mice, HDL-C increased significantly in the 2 and 10% whole-egg powder groups. In the high-cholesterol diet fed mice, administering 10% egg powder increased the atherogenic index compared to the control. Furthermore, administration of whole egg powder increased fecal bile acids dose dependently (p<0.05). These results indicate that administering 2% hen whole egg powder did not affect blood lipid profiles and was more beneficial for health by increasing HDL-C and aiding in the excretion of cholesterol by fecal bile acids than those in the control.
This study was designed to evaluate the effects of fructose(F) or sucrose(S) and guar gum intake on carbohydrate and lipid metabolism in 15-week-old male Goto-Kakizaki(GK) rats. Fifty rats were randomly assigned to 5 groups which were different in carbohydrate(25% of carbohydrate) and fiber(5% w/w) sources. The carbohydrate(CHO) sources of each group were comstarch(control group, 100% of CHO), fructose with cellulose(F), fructose with guar gum(FG), sucrose with cellulose(S), and sucrose with guar gum(SG). Each group was fed exterimental diet for 4 weeks. We measured food intake, body weight gain, adipose tissues weight and organs weight. We conducted oral glucose tolerance test(OGTT) and measured plasma insulin concentration to examine carbohydrate metabolism. To evaluate lipid metabolism, we measured the lipid profile of plasma, liver and feces. Food intake and weight gain of FG or SG groups tended to be less than those of F or S groups. Perirenal and epididymal fat pad weights of SG group were significantly lower than those of S group and those of FG group tended to be lower than those of F group. In OGTT, blood glucose values of F or S groups were significantly higher than those of C group, and FG or SG groups tended to be lower than those of F or S groups during the experimental time. The area under the curve(AUC) of C group was significantly highest among the groups, AUC and plasma insulin concentration of FG or SG groups tended to be lower than those of F or S groups. Plasma and hepatic triglyceride (TG) of FG and SG groups were significantly lower than those of F and S groups, plasma and hepatic total lipid(TL) and total cholesterol(TC) of FG and SG groups tended to be lower than those of F and S groups. Fecal TL, TG and TC of FG or SG groups tended to be higher than those of F and S groups. In conclusion, intake of guar gum should improve carbohydrate and lipid metabolism in partial substitution of fructose or sucrose for cornstarch in GK rats.
Cardiovascular diseases (CVDs) are the most common cause of death in patients with nonalcoholic fatty liver disease (NAFLD) and dyslipidemia is considered at least partially responsible for the increased CVD risk in NAFLD patients. The aim of the present study is to understand how hepatic de novo lipogenesis influences hepatic cholesterol content as well as its effects on the plasma lipid levels. Hepatic lipogenesis was induced in mice by feeding a fat-free/high-sucrose (FF/HS) diet and the metabolic pathways associated with cholesterol were then analyzed. Both liver triglyceride and cholesterol contents were significantly increased in mice fed an FF/HS diet. Activation of fatty acid synthesis driven by the activation of sterol regulatory element binding protein (SREBP)-1c resulted in the increased liver triglycerides. The augmented cholesterol content in the liver could not be explained by an increased cholesterol synthesis, which was decreased by the FF/HS diet. HMG-CoA reductase protein level was decreased in mice fed an FF/HS diet. We found that the liver retained more cholesterol through a reduced excretion of bile acids, a reduced fecal cholesterol excretion, and an increased cholesterol uptake from plasma lipoproteins. Very low-density lipoproteintriglyceride and -cholesterol secretion were increased in mice fed an FF/HS diet, which led to hypertriglyceridemia and hypercholesterolemia in Ldlr-/- mice, a model that exhibits a more human like lipoprotein profile. These findings suggest that dietary cholesterol intake and cholesterol synthesis rates cannot only explain the hypercholesterolemia associated with NAFLD, and that the control of fatty acid synthesis should be considered for the management of dyslipidemia.
Journal of the Korean Society of Food Science and Nutrition
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v.36
no.4
/
pp.405-410
/
2007
This study was to investigate the hypolipidemic effect of powdered mulberry leaves (PML) and water extract of powdered mulberry leaves (WML) on high-fat fed mice. Male C57BL/6 mice were divided into four groups; a normal group (N), a high-fat (HF) group, a high-fat group supplemented with PML (HF-PML) and a high-fat group supplemented with WML (HF-WML). The PML or WML was added to a standard diet based on 1% dried mulberry loaves (1g PML/100g diet and 0.22g WML/100g diet) for 6 weeks. Body weight and organ weights were not different among thle groups in high-fat fed mice, whereas food intake and daily energy intake were significantly (p<0.05) lowered in the HF-PML group. In plasma and liver, the supplementation of PML and WML significantly (p<0.05) lowered cholesterol and triglyceride concentrations compared to the HF group. The HDL-cholesterol/total cholesterol ratio was significantly (p<0.05) higher in the HF-PML and HF-WML groups than in the B:.w group. The fecal triglyceride and cholesterol concentrations were significantly (p<0.05) increased in the HF-PML and HF-WML groups compared to the HF group. Hepatic lipid regulating enzyme activities, fatty acid synthase, fatty acid ${\beta}-oxidation$ and carnitine palmitoyl transferase were significantly lower in the HF group than in the N group. However, the activities of these hepatic lipid regulating enzymes activities were significantly (p<0.05) elevated in the HF-PML and HF-WML groups compared to the HF group. Accordingly, these results suggest that PML and WML improve plasma and hepatic lipid levels partly by increasing fecal lipid excretion and enhancing hepatic lipid regulating enzymes activities.
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